is player connected

[LagParty]

where is this function? i cant seem to find it

[50p]

What are you on?

[JohnDoe91286]

There is no such function. What exactly are you trying to do?

[LagParty]

simple:

function isPlayerConnected(theplayer) <- returns true if the player is connected, false if its not. theplayer is a player element. Any substitute will do.

[50p]

If a player is not connected you will not get player element from nowhere.

[subenji99]

If for some silly reason you are storing player elements in a variable and not cleaning that up when they quit then the variable will assert a "bad element pointer" error.

But if you are really desperate for such a function then isElement(theVariable) will accomplish this.

[robhol]

function isPlayerOnline(NAME)
return getPlayerFromName(NAME) ~= false;
end
 
--usage
if isPlayerOnline("robhol") then
-- ...
end

That's another way to do it. But you really should make an onPlayerQuit event handler, and destroy all script references to the player and their element, when they quit the game. Otherwise you get memory leaks, etc., and we don't want that, do we? And what were you supposed to use this for? Usually when a request this strange pops up, there's something in a script that can be improved.

[LagParty]

Thanks for your help. I'm converting an old sa-mp business-script to mta (and adding all the bonuses of the new system).

The problem comes when a player leaves the server, because after that you have 5 minutes to come back or else your business will be sold. Also, the other players can't buy that player's business if he's not connected. This system helps players that are dropped from the server for any reason (time-out, crash, etc). Anyways, here's the code:

addEventHandler("onPlayerQuit", rootElem, 
function()
	playerMarker[source] = nil
setTimer(sellAllProperties, 300000, 1, source, getPlayerName(source), getPlayerMoney(source)) -- 5 minutes to come back
end
)
 
function sellAllProperties(playerID, pname, pmoney)
local player = getPlayerFromName(pname)
if player ~= false then return end -- if he's still connected then stop
 
for mark,prop in pairs(properties) do
if prop["owner"] == playerID then
		pmoney = pmoney + prop["price"]*0.5
		prop["owner"] = nil
setBlipColor(prop["blip"],0,255,0,180) 
setMarkerColor(mark,0,255,0,150)
end
end
 
executeSQLUpdate("playerinfo", 
string.format("money = %d", pmoney), 
string.format("name = '%s'", pname)
)
end